grossman



July 1, 1930. F. M. CROSSMAN y 1, 1930- F. M. ICROSSMAN 1,769,491

DRYING 0R GARBONIZING MACHINE Filed May 18', 1929 5 Sheets-Sheet 3uwzwrox \I I v Z ATZOAIVIXS July 1, 1930. F. M. CROSSMAN DRYING ORCARBONIZING MACHINE Filed May 18, 1929 5 She ets-Sheet 4 ma arm? IATIUR/ ZYS iLL F. M. cRossMAN DRYING OR CARBONIZING MACHINE July 1,1930. 1,769,491

Filed May 18, 1929 5 Sheets-Sheet 5 Patented July 1,

1 IQJNITED" STATES i I FRANCIS MAXIME CROS$MAN, or PARIS, FRANCE DRYINGoRcARBoNIziNG M oHiivE Application filed May- 18, 1929, Serial No.364,303, and in Great Britain May 24, 1928; e

7 The present invention relates to improvements in dryingorcarbomzmgapparatus of the type in which anumber of trays for supportingthe material to be dried or carbonized are hinged at one edge, and aremounted to be rotatable about a central supporting axis,

being normally held horizontally by support ing rails which areinterrupted at one point to allow the trays to swing down and Oilschargetheir contents.

According to this invention a'central driv- 7 ing shaft is adapted tosupport a skeleton cellularframework, the floor of each individual cellbeing in the form of a tray pivoted on one radial'edge. 1

TheIinvention is more particularly described with reference to thedrawings in which:

c Figure 1 is an elevation of one form of. 2 construction of drying orcarbomzing apparatus partly in section.

Figure 2 is a plan view on the line 2-2 of Figure 1. v 1

Figure 8 is an under plan View of the trays with their supporting rail.

Figure 4 is a partial top plan view of the trays. o

F igureo5 is a partial'perspective View of the trays. i v I 1 Figure 6isa diagrammatic view showing angularly spaced discharge areas from onetier to the next.

Figure 7 is a detailed plan view of a tray.

Figure 8 is a sectional elevation on the line 88'of Figure 4. v

Figure 9 is a sectional side View onthe line 99 of Figure 2. r Figure 10is a sectional elevation on the line 1010 of Figure 4.

Figure 11 is a sectional elevation on the line 11-11 of Figure 2. 1

The carbonizing ordrying apparatus consists of a cylindrical chamber 1provided at its top with an opening having a distributor'2 for feedingmaterial, such as' pulverulent material to bercarbonized, to tiers of ry 7 3% afa i a aja y p a a a a p ported by a central shaft 15', and fromthe lower tier 3? of which the material is disrigid radial partitionsaccompanying with perforations their under surfaces adaptedto co-operatewith a hired circular supporting rails 8, so

trays will'be raised from its gap will occurin the rail charged: intothe hopper' 3inthe base of the i I casing. i I

The lowerend of the casing-1 is closed by means of a conical end 5provided with a conduit 4: connected to asource of hot gas, super heatedsteam or the like drying or carbonizing agent, which passes up throughthe material on the tiersof trays a, Z), 0 0, p, and escapes at anopening arranged inthe top 6 at the top of the c-hamber'l. Each tier oftrays, a, b, c frame-work havin-gannul-ar rigid partitions 13,19, and 1.18. To the edges of certain of these radial partitions are hingedpertorate'trays 2O (Fig.1?) by means of hingepins 21 These trays areprovided 24 and have'rol'lers 23 on comprises a that'the trays arenormally held horizontal for the support of the material upon them,

but will drop down to a vertical position as 3 shown in Figure 11, whena g in the rails 8 occurs. 1

The leading edge of the gap in 8, i's preferably provided with aramprail exten- .22 Of droppedposition smoothly again to the horizontalposition sioni25,sot-hat the trailing edge has shown in Figure 9., aMaterial therefore, falling within the compartments or-cells of theframe work 14:

and supported by the trays 20 will be car-1 i ,ried round by theshatt 15in'jit's rotation" substantially a complete revolutioniwhen a 20 to falldown and discharge its material to atray lying in the tier 6 next belowit.

The material-will then be carried round on its tier also almost acomplete revolution. until another gap in the supporting rail for r thetrays of tier 6 occurs when the ma} terial willthen be discharged on tothe tier 0." These discharge areas will be displaced by angularly fromone say substantially 340 another, as for instance, shown diagram-Qmatically in Figure 6 Where 9*, 9 9, 9 indicate the discharge areas ofsuccessive tiers. 1

ltsupported from a shaft 15 and 8 allowing a tray i A ENT oFF IcEas July1, 1930.

G. DANFORTH, JR

OPEN HEARTH'FURNACE Filed Sept. 26, 192 1 7 Sheets-Sheet l

